package 牛客周赛.牛客周赛Round85;

import java.util.Scanner;

/**
 * @Title: A
 * @Author 贾金博
 * @Package 牛客周赛.牛客周赛Round85
 * @Date 2025/4/8 上午9:42
 * @description: This is A
 */
public class A {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        if(n % 2 == 1) {
            System.out.println("kou");
        } else {
            System.out.println("yukari");
        }
    }
}
